Electrical connecting-cord.



No. 692,890. Patented Feb. u, |902. I

c. H. meavov.

ELECTRICAL CONNECTING CORD.

(Application filed Nov. 15, 1901.)

(No Model.)

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UNITE STATES *PATENT OFFICE.

CHARLES H. MCEVOY, OF LOWELL, MASSACHUSETTS.

ELECTRICAL CONNECTING-CORD.

SPECIFICATION forming part of Letters Patent No. 692,890, dated February1 1, 1902.

Application filed November 15, 1901. Serial No. 82,397. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES H. MoEvoY, a citizen of the United States,residing in Low ell, in the county of Middlesex and Commonwealth ofMassachusetts, have invented a certain new and useful Improvement inElectrical Connecting-Cords, of which the following is a specification.

This invention relates to electrical connecting-cords suchas arecommonly used with hand telephones or receivers. Such cords usuallycomprise two or more insulated or sepa rately-covered flexiblemetallic-tipped con doctors inclosed throughout the greater portion oftheir length by an outer common covering of braided material to whichare se cured non-conducting suspension-cords to take the weight andstrain of the suspended instrument off the tips of the conductors; Suchsuspension-cords are sometimes continuations of the common covering.Sometimes the threads which form the common covering of two conductorsare separated at the end of the common covering, and one-half of thethreads are braided around one conductor and the other half around theother conductor from the point where the .conductors diverge at the endof the common covering.

The object of this invention is to lessen the cost of manufacturewithout diminishing the value or injuring the appearance of the finishedconnecting-cord and to cover the break between the common covering andthe sepa-- rate outer covering of one branch of the cord.

This invention comprises a plurality of insulated or separatelycoveredconductors inclosed nearly throughout their length by a common coveringwhich may be continued to the end of one conductor, while the endportion of another conductor outside or beyond the common covering isprovided with a second covering having a continuation which serves as asuspending-cord.

In the accompanying drawings, Figure 1 shows a finished connecting-cordembodying my improvement; Fig. 2, a similar cord Without tips, the uppersuspension-cord not being looped about the connecting-cord; Fig.3,similar to Fig. 2, except that the suspension-cord and the outercovering of the upper end or branch of one of the conductors is omitted.

The connecting-cord A comprises two like flexible conductors a a, eachprovided with an insulating inner covering of ordinary construction,both conductors, with their inner coverings, being surrounded(preferably by braiding) by the same outer or common covering athroughout the greater portion of their length, leaving the end portionsof said conductors at each end of the connectingcords free to diverge orbranch from the end of the common covering (at the point a) to differentbinding-posts in the usual manner.

At one or both ends, usually at each end of the connecting-cord, thecovering a is continued to form theouter covering of one branch orconductor from the point of divergence a to the free end of saidconductor, while the other branch has a separate outer covering A fromits adjacent end to the point of divergence a and this last-named outercovering A is continued to form a suspensioncord a, or thesuspension-cord a, may

first be braided and then continued to form said covering A, in eithercase said cord and covering A being continuous at the point a To preventthe separate covering A from separating from the common covering A, itis necessary that the suspension-cord a should be attached or connectedto said common covering. I prefer to connect these two coverings A A bylooping the suspension-cord a around the end portion of the commoncovering, passing the free end of said suspension-cord outward throughthe bight thus formed, making a half-hitch a as shown.

Sometimes a suspension-cord is needed at only one end of aconnecting-cord, while at the other end the conductors are bare and areheld in conducting-clamps, binding-posts, or equivalent devices, inwhich case my improvement is applied to one end only of theconducting-cord.

Obviously any number of conductors may be included in the commoncovering, and either or both projecting end portions of any conductormay have its separate outer covering continued to fo-rmasuspension-cord,substantially as above described. In any case it is thought preferableto continue the common covering to form the outer covering of oneconducting branch.

I claim as my invention- 1. An electrical connecting=cord, compris ing aplurality of conductors insulated from each other, an outer coveringcommon to said conductors to the point where said conductors diverge, aseparate outer covering for one of said conductors from said commoncovering to the adjacent end of said last-named conductor and asuspension cord integral with said separate outer covering at the pointwhere said conductors diverge.

2, An electrical connecting-cord, comprising a plurality of conductorsinsulated from each other, an outer covering common to said conductorsto the point where said conductors diverge, a separate outer coveringfor one of said conductors from said common covering to the adjacent endof said last-named conductor and a suspension cord integral with saidseparate outer covering at the point where said conductors diverge andattached to said common covering.

3. An electrical connecting-cord, comprising a plurality of conductorsinsulated from each other, an outer covering common to said conductorsto the point where said conductors diverge, a separate outer coveringfor one of said conductors from said common covering to the adjacent endof said last-named conductor and a suspension-cord integral with saidseparate outer covering at the point where said conductors diverge, saidsuspension-cord having a half-hitch around the end portion of saidcommon covering.

4. An electrical connecting-cord, comprisin g two conductors insulatedfrom each other, an outer covering, common toboth conductors to thepoint where they diverge and continued to the end of one conductor, toform an outer covering for the same, a separate outer covering for theother conductor from said common covering to the adjacent end of saidlast-named conductor, and a suspensioncord integral with said separateouter covering at the point where said conductors diverge.

5. An electrical connecting-cord, comprisin g two conductors insulatedfrom each other, an outer covering, common to both conductors to thepoint where they diverge and continued to the end of one conductor, toform an outer covering for the same, a separate outer covering for theother conductor from said common covering to the adjacent end of saidlast-named conductor, and a suspensioncord integral with said separateouter covering at the point Where said conductors diverge and secured tothe end portion of said common coverin 6. An electrical connecting-cord,comprising two conductors insulated from each other, an outer covering,common to both conductors to the point where they diverge and continuedto the end of one conductor, to form an outer covering for the same, aseparate outer" covering for the other conductor from said commoncovering to the adjacent end of said last-named conductor, and asuspensioncord integral with said separate outer covering at the pointWhere said conductors di-' 1 verge and connected to said common cover- 3ing by a half-hitch in said suspension-cord around said common covering.

In testimony whereof I have affixed my sig nature in presence of twowitnesses.

()HARLES II. MOEVOY,

\Vitn esses:

ALBERT M. ll/IOORE, ANNA T. HALLORAN.

